21293008

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{359}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 45264960

約数和(自身を除く): 23971952

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 337, 359, 674, 718, 1348, 1436, 2696, 2872, 3707, 3949, 5392, 5744, 7414, 7898, 14828, 15796, 29656, 31592, 59312, 63184, 120983, 241966, 483932, 967864, 1330813, 1935728, 2661626, 5323252, 10646504, 21293008]

約数ペア:

[(1, 21293008), (2, 10646504), (4, 5323252), (8, 2661626), (11, 1935728), (16, 1330813), (22, 967864), (44, 483932), (88, 241966), (176, 120983), (337, 63184), (359, 59312), (674, 31592), (718, 29656), (1348, 15796), (1436, 14828), (2696, 7898), (2872, 7414), (3707, 5744), (3949, 5392)]